Detention plot
"Staying after school can be murder!"
A group of college students is sent off on a criminal trial, albeit for the wrong reason. The teens find themselves abandoned and locked in a classroom after their delinquent teacher disappears. A severe storm causes severe lightning outside and also creates images of ghosts appearing in the school. They decide to break out of the classroom when they discover that a suicide has occurred in the school. When they split up, they learn that a student's death in the 1970s has become linked to them, and so this class must now fear for their own lives...